Seminar
Pittsburgh Number Theory Day
A once per semester seminar in number theory. See more information at the seminar's website https://sites.google.com/view/pghntd/
Bruno Franchi - Sobolev and Poincare Inequalities for Differential Forms in the Heisenberg Groups
Bill Troy - Open problems for the nonlinear Schrodinger equation
Converse theorems for representations of general linear groups over finite fields
Cubical setting for discrete homotopy theory
Cyclotomic subfields
Organizational meeting
Doubly Degenerate Cahn-Hilliard Models of Surface Diffusion
Motion by surface diffusion is a type of surface-area-diminishing flow such that the enclosed volume is preserved and is important is many physical applications, including solid state de-wetting. In this talk I will describe a relatively recent diffuse interface model for surface diffusion, wherein the sharp-interface surface description is replaced by a diffuse interface, or boundary layer, with respect to some order parameter.